Machine for printing paper bags



(No Model.) 2 Sheets-Sheet 1.

0. Gr V'ANDERHOOF. MACHINE FOR PRINTING PAPER BAGS.

No; 424,150. Patented Mar. 25, 1890.

N FEYERS, Hmlo-Liihogmnhur, Wlihingtun, D. C.

2 Sheets-Sheet 2,

(No Model.)

0 G VANDERHOOF MACHINE FOR PRINTING PAPER-BAGS.

Patented Mar. 25, 1890..

UNITED STATES PATENT OFFICE;

ORSON G. VANDERIIOOF, OF LEXINGTON, KENTUCKY.

MACHINE'FOR PRINTING PAPER BAGS.

SPECIFICATION forming part of Letters Patent No. 424,150, dated March 25, 1890. k Application filed February 28, 1839. Serial No. 301,534- (No model.)

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invent-ion relates to rotary printingmachines; and it consists in certain improvements in the construction of the same, as hereinafter described and claimed. In the construction as herein described the machine is adapted for printing advertisements on paper bags and wrappers, and is provided with certain devices for holding the bags and wrapper-sheets in place while being printed.

In the accompanying drawings, Figure 1 represents a plan view of a printing-machine provided with my improvements. Fig. 2 is a side view of the same, parts being removed. Fig. 3 is an end View showing the rear end of the machine. Fig. 4 partly illustrates the spring-arms of the bag-holding devices.

A designates the base of the casing, to which the standards B are. secured, the opposite standards being connected by the cross pieces a.

0 indicates a board which rests on the base A, or on tracks secured thereto, and forms a base for the operating devices. To the board 0 are fastened the opposite standards D, which are connected at the top by a crosspiece I). To the board 0 are also secured the curved slotted standardsE and E, two standards E being located opposite each other toward the forward end of the board, and two standards E being in opposite positions toward the rear end, for the purpose hereinafter mentioned.

F and F indicate spring-arms, which are .usually constructed of wire and are connected-with the board 0, the two arms F extending forward and the arms F extending rearward, as shown. The inner ends of these spring-arms are connected by the wire which crosses ,the board 0 and is formed into a spring F, the wire being secured by staples ,to the board, which is recessed to receive the spring. 1 G indicates a roller, which iscarried by the forward arms F. The journals of said roller may be loosely held by said arms, or the flatter may be bent inward at their forward extremities and passed through the slots in standards E and into holes in the roller. G indicates another roller, which is carried by the two arms F in like manner as roller G is carried by the arms F. These two rollers extend over and across the board 0, and the -springF and arms are so constructed that they tend to press the rollers down to the board O. Toassist somewhat in such downward pressure of the rollers, springs c are placed in the slotsof the curved standards E E, over the journals of the rollers, which Emay be extended into said slots, or over the spring-arms when the latter are bent, and passed through the slots into the rollers. The front roller G is provided with a covering bf absorbent material to take up moisture from the impressions of the printing-roller.

The roller G is usually provided with a covering of rubber or other similar material. The printing-roller H is journaled in a frame which consists of the sides-J with trans- .verse connections. The said sides are provided at their forward ends with curved slots 5d, through which the turned ends of-thearms';

ftoreceive journal-boxes of the printingroller and the springs g placed above said boxes to allow the roller a slightly-yielding movement in case of unevenness from any cause in the pile of bags or sheets under the roller. The springs h are connected with the forward ends of the sides J and with the board 0 and assist inbringing down the roller-frame as the pile of bags becomes reduced. in size.

The printing-types are arranged on one side .of roller H, so that they occupy not more than one-half of the peripheral surface, the remainder of such surface being left blank. The printing-roller is provided with raised surfaces at its extremities, such surfaces be ing usually formed of rubber bands L. Th ese bands serve as bearing-surfaces for the roller on the bags when the latter are not in contact with the type, the projection of said raised surfaces being equal to that of the type.

An indicator mis placed on the shaft of the printing-roller to indicate the correct position of the roller for starting, the half part of the roller which carries the form of type being toward the rear when the indicating hand points directly upward.

Adjacent to the printing-roller is a box I, which is journaled in the sides J and extends from one side to the other. The said box is divided into a number of compartments lcfor ink of different colors, and each compartment is open at the bottom and is provided wit-h sponge, which rests upon an inking-roller L, so that ink permeating the sponge -may pass to the inking-roller. The sponge-box is held to the roller by springs 71. The side of the box I toward the roller H is extended at 0 to nearlytouch the roller L, and is so constructed that the sponge cannot be displaced by the movement of the roller, and the ink is prevented from passing in too large a quantity to the surface of the roller. The roller L is journaled in slots in the sides J in position to ink the form on the printing-roller II. Tension-springs p are connected with the jour- 'nals of roller L and with the sides J.

At the, rear end of the board 0 is a wire (1, having both ends fastened to the board and curving over and across the same, said wire being braced by another wire 0', which extends from a cross-bar carried by the standards D. A fine wire 3 is secured at one end to the curved wire q, and is passed down through the bags at the mouth ends, when said bags are placed on the board 0, and 'is secured to said board at its rear end. This wire .9 is for the purpose of retaining the paper sacks or sheets in place during operation. As each sack is drawn forward after receiving an impression from the printing-roller, the wires serves to hold the remaining sacks in place.

M indicates a blade which is used in de taching sheets of the required size when wrapping-sheets are being printed, the said blade being made fast to the ends of the arms 1, which are loosely coupled to the extremities of spring-arms E, which are passed through eyes in arms 25. I

'Apertures c are made in the standards E E for the insert-ion of pins under the springarms 1* F when the latter are raised for the purpose of placing the bags or sheets to be printed on the boards C. Buttons (indicated at u) pivoted to the board 0 may also be used to hold up the spring-arms while the sacks are being placed. The rollers G G being raised, the bags to be printed are placed on the board 0, as seen in Fig. 1, and the springarms are released and the rollers are brought down by the springs to press against the bags. The printing-roller is adjusted in position with the indicator on pointing directly upward, that part of the peripheral surface of the roller which bears the form being rearward. The first bag is then drawn forward and the printing-roller and the other rollers in contact with the bag are rotated by the movement. \Vhen the printing-roller has made one-half of a revolution, the bag has received an impression from the form, and when the bag has been entirely withdrawn the form has reached the surface of the next bag to be printed. As the bags are successively printed and. drawn out, the pile diminishing in size, the rollers G Gf are kept in contact with the bags by the spring-arms, the printil'ig-roller being also brought down by said arms and springs h and kept in contact with the bags remaining in the apparatus. The slots (Z in the sides J of the roller-frame make allowance for any difference of movement between arms F and sides J during the downward movement.

\Vhen the bags have all been printed and drawn out and it is desired to print a new lot, the board 0 may be withdrawn from the frame, and the framewhich carries the printing devices may be unhooked and taken off, and a new lot of bags may then be placed on the board C, which is then returned to its place in the frame, and is retained in place by one or more lugs 00, which enter recesses 2.

When paper for wrapping-sheets is printed, sheets of the required size may be detached by pulling the paper upward against the edge of the blade M. The paper from which the sheet is detached by pulling upward against the edge of blade M is flat, cut into sheets, and provided with holes for the fine wire to pass through. As each sheet is pulled off,

the wire cuts its way through.

The apparatus may be inclosed by easing formed of plates of glass or other suit-able material secured to the main frame, a swinging doorbeing provided in front, as indicated at P.

I claim- 1. In a printing-macl'iine, the con'ibination, with a printing-roller and a frame in which said roller is journaled, of a series of springarms provided with rollers at their free ends, and a base-board to which the inner ends of said arms are secured, two of said arms supporting the forward end of the frame in which the printing-roller is mounted, substantially as and for the purposes described.

2. The combination, with a base-board, of the arms F and F, secured to said board and provided with a spring F and rollers G and G, which are carried by said arms, substantially as and for the purposes described.

3. The combination, with a base-board provided with standards D, of the spring-arms F F, rollers G G, carried by said spring-arms, a frame which is provided with slots d and is pivotally connected at its rear end with standards D, and connected at its front end with the journals of rollers G, and a printing-roller and inking devices journaled in said frame, substantially as and for the purposes described.

4. The combination, with a base-board, of the spring-arms and two rollers carried by said arms, and a blade M, provided with arms 15, which are pivotally connected with the journals of rollers G, substantial] y as set forth and described.

5. The combination, with a base-board provided with standards D and curved slotted standards E E, of the spring-arms, rollers G G, and springs c, in position to press down- Ward against the journals of said rollers, sub- 15 stantially as set forth. I

6. The base-board provided with standards D, in combination with the spring-arms and rollers carried by said arms, the Wires 0" and g, and vertical Wire 3, substantially as set 20 forth.

In testimony whereof I have aflixed my signature in presence of two Witnesses.

' ORSON G. VANDERHOOF.

Witnesses:

C. SUYDAM Scorr, E. L. I-IUToHINsoN. 

